A10 Networks stock dives after it slashes outlook Shares of A10 Networks dropped by as much as 21 percent in after-hours trading when it downgraded its guidance for the second quarter. The San Jose-based application delivery company said it expects its second-quarter loss per share to be between 12 cents and 13 cents. It projected an loss of between 5 cents and 6 cents a share.(San Jose Biz Journal)